LenD: a study to establish the safety and efficacy of lenalidomide and dexamethasone in patients with relapsed or refractory chronic lymphocytic leukemia. Issue 7 (3rd July 2018) - Gohil, Satyen Harish; Maciocia, Nicola; Patrick, Pip; Roberts, Thomas; Counsell, Nicholas; Smith, Paul; Clifton-Hadley, Laura; Cwynarski, Kate; Pettitt, Andrew; Nathwani, Amit Chunilal